초음파 및 환원제 첨가가 중금속 오염토양의 토양세척에 미치는 영향

• 영문명: Effect of Sonication and Reducing Agent Addition on Soil Washing of Heavy Metals-contaminated Soil
• 발행기관: 한국환경보건학회
• 저자명: Hwang, Seon-Suk Park, Joon-Seok NamKoong, Wan
• 간행물 정보: 『1. 한국환경보건학회지』제33권 제1호, 75~81쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2007.02.28

영문 초록

This research was conducted to estimate the effect of sonication and reducing agent addition on soil washing of heavy metals-contaminated soil. Sonication trained in soil washing did not significantly increased extraction efficiency of heavy metal compared to soil washing only. The extraction efficiency of sonication trained in soil washing was 12% increased for Pb in 0.01M EDTA leaching solution. Pb and Cd showed higher extraction efficiency in case of reducing agent treatment with mechanical shaking than that with sonication. However, the extraction efficiency of Cu and Zn in case of reducing agent treatment with sonication was over 2 times higher than that in with soil washing. Therefore, application of reducing agent addition with sonication or mechanical shaking should be decided differently for pretreatment of soil washing, according to the kind of heavy metal. It was estimated that sonication after adding reducing agent could increase removal efficiency of Zn or Cu-contaminated soil and shorten the treatment time.

키워드

sonication soil washing heavy metal reducing agent